4.I don’t want to undergo the painful period of college enterance exam.
不想再经历高考这个痛苦的阶段了。

【其他表达】

He got nervous again at the college entrance examination this year.
今年高考他又憷场了。

Li Ming, when he finished his entrance examination to the university, was so tired and sleepy that he fell into bed and slept the clock round.
李明参加完高考又疲劳又困，一下子倒在床上睡了一整天。

【Tips】

college entrance examination system
高考制度